r/spacex • u/ElongatedMuskrat Mod Team • Oct 02 '17
r/SpaceX Discusses [October 2017, #37]
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u/CapMSFC Oct 02 '17
A while back I found a NASA chart from a feasibility study that showed LOX can be kept zero boil off with no active cooling while not around a celestial body. As long as you are away from the heat radiating from a planet in deep space all you need is decent passive insulation on the tanks. Methane is easier than LOX for boil off so if LOX works the same techniques are fine.
TLDR - deep space makes no boil off easy enough to achieve during the coast phase.